Seam for sewed articles.



S. G. TATE.

SEAM FOR SEWED ARTICLES APPLICATION FILED JULY 23, 1917-.

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SAMUEL GEORGE TATE, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEAM FOR SEWED ARTICLES.

Specification. of Letters Patent.

Patented Apr. 9, 1918.

Application filed. July 23, 1917. Serial No. 182,264.

To all whom it may concern:

Be it known that I, SAMUEL GEORGE TATE, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Seams for Sewed Articles, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in seams for sewed articles, and more particularly to a flat seam for abutting the edges of fabric sections.

An object of the invention is to provide a scam of the above character in which the stitches will not ravel, nor the seam part under a transverse strain, and wherein the abutted edges of the fabric sections are firmly joined and the loose ends of threads of the fabric sections covered.

In the drawings which show by Way of illustration one embodiment of the invention,

Figure 1 is an enlarged plan view of fabric section joined by my improved seam;

Fig. 2 is a bottom plan View of the same.

The invention broadly consists in a seam for joining the abutted edges of fabric sections which includes two parallel lines of stitching passing respectively through the fabric sections and also parallel with the abutted edges of the fabric sections. The lines of stitching are connected on the upper face of the fabric sections by a cross thread. A third line of stitching passes through or between the abutted edges of the fabric sections tying down the cross threads and this line of stitching includes thread loops which are extended laterally and joined to or locked by the first mentioned parallel lines of stitching.

Referring more in detail to the drawings, I have shown two fabric sections F and F having their edges abutted as indicated at f. A line of stitching indicated at S passes through the fabric section F only. This line of stitching consists of a needle thread 1 formed into a series of loops 2 which extend downwardly through the fabric and these needle loops are locked or secured by a looper thread 3 which is formed into thread loops 4. Each thread loop 4 is passed through a needle thread loop 2 and this thread loop 4 of the looper thread is locked by the next needle loop passed through the fabric section. This forms the ordinary two thread double locked stitch. A line of stitchingS passes through the fabric section F only, and this line of stitching consists of a needle thread 5 which is formed into needle loops 6 which pass downwardly through the fabric section F. The needle loops 6 are secured or locked by a looper thread 7 which is formed into loops 8 which are locked or concatenated with the needle loops 6 in the manner above described in connection with the looper thread 4, so that this line of stitching S forms the ordinary two thread double locked stitch.

The lines of stitching SS are connected on the upper face of the fabric sections by a covering thread 9 which passes about each needle loop, first on one side of the abutted edges of the fabric sections and then on the other side thereof.

A third line of stitching indicated at S consists of a needle thread 11 which is formed into needle loops 12. These needle loops pass downwardly between the abutted edges of the fabric sections or through said abutted edges if they are slightly overlapped. The needle loops 12 on the under face of the fabric are extended laterally in opposite directions and each loop is entered by the needle thread loops 2, 6 and 12 on the next descent of the needles carrying the threads 1, 5 and 11. These extended loops 12 not only cross the meeting edges of the fabric sections but join the lines of stitching S and S. The lines of stitching S and S being double locked stitches will not ravel, from any strain exerted thereagainst through a pull or strain on the fabric sections, and, therefore, inasmuch as these stitches will not ravel, the connecting threads in the cross thread and in the needle loops 12 will always be locked and the seam as a whole will not part. The needle thread 11 ties down the covering thread and this needle thread together with the covering thread not only joins the lines of stitching firmly uniting the fabric sections, but said threads also cover the loose ends of threads in the fabric sections. The covering thread also supports the needle thread 11, the loops of which pass between the abutted edges of the fabric sections.

It is obvious that minor changes in the details of construction may be made without V departing from the spirit of the invention as set forth in the appended claims.

lines of stitches on the upper face of the fabric sections, a third line of stitching disposed between the first two lines of stitching andincluding loops which are extended on p the under surface of the fabric and interlocked with the first mentioned lines of stitching.

.. 2. Thecombination of fabric sections having abutted edges, two parallel rows. of

double locked stitches passing throughthe respective. fabric-sections parallel with the meeting edges thereof, a covering thread COHIIGCUIIg'UJQ rows of stitches on the upper face. of the fabric sections, a needle thread extending along the-.meeting edges of. the

fabricsections and overlying the. covering thread and formed into loops passing between the abutted edges of the fabric sections, said loops being extended laterally and interlocked with the'first mentioned-rowsof stitching.

3. The combination of fabric sections having abutted' edges, two parallel rows of double locked stitches passingthrough the respective fabric sections parallel with the meeting edges thereof, a covering thread connecting the rows of stitches on the upper face of the fabric sections, a needle thread extending along the meeting edges of the fabric sections andoverlying the covering thread and formed into loops passing between the abutted edges of the fabric sections, each of said loops being extended laterally and interlocked with both of said first mentioned rows of stitching and by the next needle loop formed in. said needle thread extending along the meeting edges.

In testimony whereof, 1 Mix my signature.

SAMUEL Geo-nan TATE.

.1 00911210! this patent may beohtainedfor five cents each, by addressing the Commissioner vat Patentc,

Washington. 0.? 

